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SUSE: 2021:0163-1 Important Fixes for Dnsmasq Cache Poisoning

suse
Calendar Grey January 19, 2021
Dist Suse Esm H88
SUSE Security Bulletin addresses critical vulnerabilities in dnsmasq, resolving risks related to cache poisoning and heap overflow exploits.
An update that fixes 7 vulnerabilities is now available

Summary

This update for dnsmasq fixes the following issues: - bsc#1177077: Fixed DNSpooq vulnerabilities - CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. - CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflows when DNSSEC is enabled. - Retry query to other servers on receipt of SERVFAIL rcode (bsc#1176076) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Module for Basesystem 15-SP2: zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-163=1 - SUSE Linux Enterprise Module for Basesystem 15-SP1:

Topics%20covered

Topics Covered

security advisory important heap overflow cache poisoning suse dnsmasq

References

#1176076 #1177077

Cross- CVE-2020-25681 CVE-2020-25682 CVE-2020-25683

CVE-2020-25684 CVE-2020-25685 CVE-2020-25686

CVE-2020-25687

Affected Products:

SUSE Linux Enterprise Module for Basesystem 15-SP2

SUSE Linux Enterprise Module for Basesystem 15-SP1

https://www.suse.com/security/cve/CVE-2020-25681.html

https://www.suse.com/security/cve/CVE-2020-25682.html

https://www.suse.com/security/cve/CVE-2020-25683.html

https://www.suse.com/security/cve/CVE-2020-25684.html

https://www.suse.com/security/cve/CVE-2020-25685.html

https://www.suse.com/security/cve/CVE-2020-25686.html

https://www.suse.com/security/cve/CVE-2020-25687.html

https://bugzilla.suse.com/1176076

https://bugzilla.suse.com/1177077

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:0163-1
Rating: important

Topics%20covered

Topics Covered

security advisory important heap overflow cache poisoning suse dnsmasq

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